20117366 has 4 divisors (see below), whose sum is σ = 30176052. Its totient is φ = 10058682.

The previous prime is 20117359. The next prime is 20117401. The reversal of 20117366 is 66371102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5029340 + ... + 5029343.

It is an arithmetic number, because the mean of its divisors is an integer number (7544013).

Almost surely, 2^20117366 is an apocalyptic number.

20117366 is a deficient number, since it is larger than the sum of its proper divisors (10058686).

20117366 is a wasteful number, since it uses less digits than its factorization.

20117366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10058685.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20117366 is about 4485.2386781530. The cubic root of 20117366 is about 271.9716936374.

Adding to 20117366 its reverse (66371102), we get a palindrome (86488468).

The spelling of 20117366 in words is "twenty million, one hundred seventeen thousand, three hundred sixty-six".